Samples
of Barium hydroxide were prepared from the reaction of barium nitrate
in the presence of sodium and potassium hydroxide. I had made three
samples with different time.
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Fig
2.1 Reactants and Products
Calculation of
Ba(OH)2 for 12h
(8/100)
x 2.5 = 0.125g
Ba(NO3)2
:
2.5 – 0.125g = 2.375g
Ba(NO3)2
: 0.125g
NaOH
: 5.15g
KOH
: 4.85g
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Calculation
of Ba(OH)2 for 8h
(4
/100) x 2.5 = 0.25g
Ba(NO3)2
: 2.5 – 0.25g = 2.25g
Ba(NO3)2
: 0.25g
NaOH
: 5.15g
KOH
: 4.85g
Calculation
of Ba(OH)2 for 4h
(4
/100) x 2.5 = 0.25g
Ba(NO3)2
: 2.5 – 0.25g = 2.25g
Ba(NO3)2
: 0.25g
NaOH
: 5.15g
KOH
: 4.85g
I
put all the chemicals according to their concentration in three Teflon beakers
separately and put them in the furnace at 220OC for three different
time 12, 8, 4 hours. After this, I took beakers from the furnace and let them
cool at room temperature. Then I wash the samples with the distilled water to
remove deposited hydroxides from the surface of particles and then filtered
them. White colored powder is obtained. Then, samples are ready for
characterization.
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